34767-55-0

Basic information

• Product Name: ACETYLACETONATOBIS(CYCLOOCTENE)RHODIUM (I)
• Synonyms: Acetylacetonatobis(cyclooctene)rhodiuM(I),97%;(2,4-Pentanedionato)bis(eta2-cyclooctene)rhodium;(Acetylacetonato)bis(cyclooctene)rhodium;Bis(cyclooctene)(2,4-pentanedionato)rhodium;ACETYLACETONATOBIS(CYCLOOCTENE)RHODIUM (I);Acetylacetonatobis(cyclooctene)rhodium(I),min.97%;Acetylacetonatobis(cyclooctene)rhodium(I), min. 97%
• CAS NO: 34767-55-0
• Molecular Formula: C₂₁H₃₅O₂Rh
• Molecular Weight: 422.41
• Product Categories: organometallic complex;Rh
• Mol File: 34767-55-0.mol
• Article Data: 4

Chemical Properties

• Appearance: yellow/Powder
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Sensitive: air sensitive, store cold
• CAS DataBase Reference: ACETYLACETONATOBIS(CYCLOOCTENE)RHODIUM (I)(CAS DataBase Reference)
• NIST Chemistry Reference: ACETYLACETONATOBIS(CYCLOOCTENE)RHODIUM (I)(34767-55-0)
• EPA Substance Registry System: ACETYLACETONATOBIS(CYCLOOCTENE)RHODIUM (I)(34767-55-0)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36
• TSCA: No
• Hazardous Substances Data: 34767-55-0(Hazardous Substances Data)

Usage

Reaction

Rhodium source used in combination with phosphine ligands to catalyze the 1,4-addition of arylboronic acids to α,β-unsaturated carbonyl compounds. Rhodium source for the catalytic addition of arylboronic acids to N-tert-butanesulfinyl imino esters.

Upstream product

• 123-54-6 acetylacetone 
• 86891-03-4 sodium acetylacetonate monohydrate 
• 1118-67-8 sodium (Z)-4-oxopent-2-en-2-olate 

Downstream Products

• 1065498-47-6 Rh(acetylacetonato)(κ2-4-methoxy-N-((pyridin-2-yl)methylene)benzenamine) 
• 1065498-51-2 Rh(acetylacetonato)(κ2-2,6-diethyl-N-((pyridin-2-yl)methylene)benzenamine) 
• 1065498-53-4 Rh(acetylacetonato)(κ2-2,6-diisopropyl-N-((pyridin-2-yl)methylene)benzenamine) 
• 1065498-49-8 Rh(acetylacetonato)(κ2-2,6-dimethyl-N-((pyridin-2-yl)methylene)benzenamine) 
• 897049-50-2 (Rh(acac))2(Ph2PCCCCPPh2-κ2P)2 
• 897049-49-9 (Rh(acac))2(Ph2PCCPPh2-κ2P)2 
• 897049-48-8 Rh(acac)(Ph₂PCC-t-Bu)2 
• 900145-22-4 [Rh(acetylacetonato)(κ2-o-Ph2PC6H4CH=N-2,6-(i-Pr)2C6H3)] 

Relevant articles and documents

Efficient synthesis of the cyclometalated complex fac-[Rh(ppy)3] (ppy = 2-phenylpyridinato)

A new convenient high-yield synthesis of the tris-cyclometalated complexes fac-[Rh(ppy)3] (4; ppy = 2-phenylpyridinato) was developed. Complex 4 was prepared in a kind of one-pot synthesis starting from in situ prepared [Rh(acac)(coe)2] (2) which was heated in refluxing 2-phenylpyridine for a short time. After purification by filtration over alumina, compound 4 was obtained in yields of 65%. Also [Rh(acac)(ppy)2] (3) was prepared in a similar manner by oxidative addition of Hppy in refluxing toluene in high yields. In contrast to previous findings with the analogous iridium compounds, there was not any hint at the formation of the isomer mer-[Rh(ppy)3] using similar reaction conditions as applied for iridium. Furthermore the compound [{Rh(μ-Cl)(ppy)2}2] (5) was prepared from [{Rh(μ-Cl)(coe)2}2] (1) and Hppy in refluxing toluene in nearly quantitative yield.

Synthesis of the tris-cyclometalated complex fac-[Rh(ptpy)3] and X-ray crystal structure of [Rh(acac)(ptpy)2]

New convenient syntheses of the cyclometalated complexes [Rh(acac)(ptpy)2] (3, ptpy = 2-(p-tolyl)pyridinato) and fac-[Rh(ptpy)3] (4) are described. The compounds were prepared in a kind of one-pot synthesis starting from in situ prepared [Rh(acac)(coe) 2] (2) (coe = cis-cyclooctene) followed by reaction with Hptpy in refluxing toluene. Under these conditions oxidative addition occurred and the new complex 3 was obtained in good yields. Compound 4 was prepared in good yields by reaction of 3 with Hptpy in excess. The complex 3 crystallized from dichloromethane/iso-hexane in the space group P - 1 and its molecular structure was confirmed by a single-crystal X-ray diffraction study. The absorption and emission spectra exhibit the new compounds as red-emitting phosphorescent complexes.